— Efficient • Precise • Intelligent — The Belt and Road Water-Saving Agriculture Summit Forum & The 7th Beijing International Irrigation Technology Exposition 2019. The conference will invite international representatives, experts, scholars, industry regulatory authorities, and leading domestic enterprises to engage in in-depth exchanges around the conference theme and jointly sign the "Beijing Declaration on China's Irrigation Development." Representatives from Russia, India, Philippines, the United States, Australia, France, Israel, the Netherlands, Italy, and Kyrgyzstan

4.1 Drip irrigation fertilization is a precise fertilization method that applies fertilizer only to the roots, significantly improving fertilizer utilization efficiency. Compared with conventional fertilization, it can save fertilizer by 30-50% or more; 4.2 It greatly saves labor in fertilization, saving more than 90% compared to traditional fertilization methods. Fertilization is fast, and fertilization of thousands of acres can be completed within one day; 4.3 It allows flexible, convenient, and accurate control of fertilization time and quantity; 4.4 It significantly increases yield and improves quality, enhancing the ability of crops to resist bad weather; 4.5 It allows for the cultivation of crops in marginal soils, such as sandy land, high mountain slopes, and slightly saline-alkali land; 4.6 It is conducive to

In recent years, fertigation has been widely used in protected cultivation. Fertigation has advantages such as simultaneous water and fertilizer application, reduced fertilizer volatilization, improved fertilizer utilization, and labor saving. We will mainly introduce the fertilizer requirements, application rates, and fertigation methods for protected crops. Protected cultivation fertigation methods 1. Overview of fertilization methods in protected cultivation Fertilization methods for crops in protected cultivation generally include soil fertilization, topdressing, and foliar fertilization. A brief description of each method and its requirements is as follows: (1) Soil fertilization Soil fertilization is a fertilization method in which fertilizers are applied to the root distribution layer according to the characteristics of root distribution. This method is convenient

Subsurface drip irrigation has developed relatively quickly, but the relative area is small, limited only to cotton irrigation. Subsurface drip irrigation (SDI) skills and characteristics SDI is a method of slowly delivering water or a water-fertilizer mixture into the soil of the crop root zone through water emitters on buried capillaries, and then using capillary action or gravity to disperse the water to the root layer for absorption and use by the crop. Compared with other irrigation methods, SDI has significant advantages: it significantly saves water, has a high fertilizer utilization rate, and can optimize product quality and increase yield. At the same time, SDI technology can operate with small flow and low head, saving operating costs.

Camellias belong to the Theaceae family and are evergreen shrubs and small trees. Their pleasant fragrance and abundant blooms make them popular, often cultivated as bonsai for indoor decoration. However, before placing camellias indoors, they require shaping and wiring. How are camellia bonsai shaped and wired? 1. Selecting Bonsai Seedlings: Bonsai camellias should be selected from nurseries with widely spaced plants. Selected plants should have low branching, numerous branches, uniform leaves, normal development, and be free of pests and diseases. 2. Determining Camellia Bonsai: The flowering bud differentiation period of camellias...